Utilitarianism is the philosophical dogma that actions are right if they are beneficial or for the benefit of a majority. From Seneca’s On Leisure:

The duty of a man is to be useful to his fellow-men; if possible, to be useful to many of them; failing this, to be useful to a few; failing this, to be useful to his neighbours, and, failing them, to himself: for when he helps others, he advances the general interests of mankind. Just as he who makes himself a worse man does harm not only to himself but to all those to whom he might have done good if he had made himself a better one, so he who deserves well of himself does good to others by the very fact that he is preparing what will be of service to them.

Comports with Ralph Waldo Emerson: “The purpose of life is not to be happy. It is to be useful, to be honorable, to be compassionate, to have it make some difference that you have lived and lived well.”